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Reference
Endpoint:
relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Experimental starting date - 02 November 2020; Experimental completion date - 20 November 2020
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.16 (Relative Self-Ignition Temperature for Solids)
Deviations:
no
GLP compliance:
yes
Specific details on test material used for the study:
Identification: 4-Hydroxycoumarin
CAS Number: 1076-38-6
Appearance/Physical State: Beige powder
Batch Number: HCN20002
Purity: 100.3 % w/w
Expiry Date: 26 September 2022
Storage Conditions: Room temperature, in the dark
Relative self-ignition temperature:
> 400 °C
Remarks on result:
no self ignition observed under the test conditions
Conclusions:
The test item has been determined to not have a relative self-ignition temperature below 400 °C.
Executive summary:

The determination was carried out using a procedure designed to be compatible with Method A.16 Relative Self-Ignition Temperature for Solids of Commission Regulation (EC) No 440/2008 of 30 May 2008.

The cube was completely filled with the test item and placed in the centre of the oven at room temperature. A thermocouple was placed in the centre of the sample and another in the oven. The oven temperature was programmed to increase from ambient to 400 °C at a rate of

0.5 °C/min. The temperature/time curves relating to the condition in the centre of the sample and the oven were recorded on a data logger.

Based on the findings of the study, the test item has been determined to not have a relative self-ignition temperature below 400 °C.

Description of key information

The test item has been determined to not have a relative self-ignition temperature below 400 °C.

Key value for chemical safety assessment

Additional information

The determination was carried out using a procedure designed to be compatible with Method A.16 Relative Self-Ignition Temperature for Solids of Commission Regulation (EC) No 440/2008 of 30 May 2008.

The cube was completely filled with the test item and placed in the centre of the oven at room temperature. A thermocouple was placed in the centre of the sample and another in the oven. The oven temperature was programmed to increase from ambient to 400 °C at a rate of

0.5 °C/min. The temperature/time curves relating to the condition in the centre of the sample and the oven were recorded on a data logger.

Based on the findings of the study, the test item has been determined to not have a relative self-ignition temperature below 400 °C.